Each week, Melissa Kirsch & Alice Bradley of Lifehacker bring in all-star guests to tackle the stuff that matters—like how to be happy, how to buy a TV, how to be less bad with money and how to tell if you’re dating a psychopath. Look, you're doing great, but quite frankly we think you can be a little better. All your friends do too. It's time for The Upgrade.

Jumping to an entirely new line of work, a new industry, a new identity, is extremely daunting. That’s why this week we’re diving right into the how-tos of making the big career switch. First we chat with consultant, speaker, and podcaster Joseph Liu, who has helped numerous people make big mid-career transitions over the years. Then we hear a personal career change story from Julieta Benavides, who leapt from her high-paying career in restaurant management into the world of therapeutic massage...

What can we do to live longer, healthier lives? Bulletproof Coffee founder Dave Asprey joins us on The Upgrade to talk about the practices he’s adopted that he believes will help us all lengthen our lifespans. Then Lifehacker’s Health Editor, Beth Skwarecki, talks about the longevity secrets she learned while visiting the Nicoya Peninsula in Costa Rica—an area that author Dan Buettner has designated as a Blue Zone...

This week we’re improving our public speaking skills with the help of expert Carmine Gallo, author of “Talk Like TED: The 9 Public-Speaking Secrets of the World’s Top Minds,” who tells us about the importance of story and emotion when it comes to presenting. Then hear Lifehacker’s Food Editor, Claire Lower, tell her own story about how she learned to get comfortable in front of a crowd.

Do you ever find yourself spending way too much time worrying about what people think of you? Are you ready to let those needless concerns go to focus on other, more important things? This week on The Upgrade, we’re working through our issues with Mark Manson, author of “The Subtle Art of Not Giving a Fuck,” as well as revisiting our interview with writer Samantha Irby from our 2017 “How to Not Give a Shit” episode.

We're talking fecal transplants, probiotics, gut flora and more this week. Do bacteria in your GI tract affect your moods? How does your microbiome affect your overall health? We visit the lab of computational biologist Dr. Jose Clemente where he and his team study the efficacy of fecal transplants in patients with Inflammatory Bowel Disease.

On this episode of The Upgrade, we're tackling debt. Crippling, anxiety-inducing debt. It can be hard to know where to start when facing such a heavy burden. Fortunately, we got some help. First, hear Lifehacker staff writer Lisa Rowan answer Upgrade listener and Lifehacker reader-submitted questions about credit cards. Then, we're joined once again by personal finance expert Farnoosh Torabi, who coaches us on how to start to get a handle on debt.

Have you ever found yourself totally immobilized in the face of a decision? Why is deciding on something so difficult, whether it’s deciding what to have for dinner or whether we should move across the country? This week, we talk with neuroscientist David Redish about what is actually happening in our brains during the decision-making process. Then, we're joined by Lifehacker’s managing editor Virginia Smith to figure out how our moral, social and legal frameworks inform the decisions we make.

On this smaller episode we’re diving into the topic of small talk. Is it there real value in shooting the breeze, or is it just inane jibber-jabber? Wherever you stand on the topic, you’re going to be called on to engage in small talk sooner or later—so how do you get more comfortable with it? Our producer asked the people who are probably the most fluent in small talk: bartenders...

This week we’re talking about impostor syndrome—the psychological phenomenon wherein people question their successes and have an internalized fear of being discovered as a fraud. We’ll hear from Lifehacker’s staff writer, Nick Douglas, who explains why he keeps something called a “brag file.” We’ll also chat with clinical psychologist Dr. Jessamy Hibberd, author of the book The Impostor Cure. And our producer takes to the streets to find out how people deal with their own feelings of inadequacy.